Datasets

Dataset index

BEAR stores each data source separately (see data/) but also makes available a single BEAR.rds dataset to download. For very large datasets BEAR.rds only contains a smaller selection of rows.

Dataset tags (hover for explanation)

replicationmeta analysisdatabasemetascience paperPubMedrandom sampleprimary outcomeRCT

Databases

Dataset	Domain	Data
clinicaltrials.gov snapshot databaserandomprimaryRCT	clinical trials	registry of 16.6k clinical trials
Cochrane Database of Systematic Reviews (CDSR) metadatabaseprimaryRCT	medicine & health	90k studies in 6.6k Cochrane reviews
EU Clinical Trials Register (EU CTR) databaserandomprimaryRCT	clinical trials	registry of 8.7k clinical trials
Metapsy metadatabaseRCT	psychotherapy	1.5k studies in 20 meta-analyses
psymetadata and Nuijten et al metadatabase	psychology / intelligence	2.6k studies across psychology datasets
What Works Clearinghouse databaseRCT	education	1.4k education studies

Metascience datasets

Dataset	Domain	Data
Arel-Bundock et al 2022 metametascience	political science	2.3k studies in 351 meta-analyses
Askarov et al 2023 metametascience	economics	1.9k studies from 352 meta-analyses
Bartoš et al. 2025 metametascienceRCT	exercise	2.2k studies in 215 meta-analyses
Brodeur et al. 2024 metasciencerandomRCT	economics	328 RCTs from econ journals
Costello and Fox 2022; Yang et al 2023, 2024 metametascience	ecology & evolution	13k studies in 553 meta-analyses
Lang 2025 metasciencerandomprimary	economics	736 papers from econ journals
Sladekova et al. 2023 metametascience	psychology	3.5k studies in 406 meta-analyses
Szucs and Ioannidis 2017 metasciencerandom	cognitive neuroscience	2.3k cognitive neuroscience studies

Replication efforts

Dataset	Domain	Data
Many Labs 2 replication	psychology	128 replications of 28 effects
Open Science Collaboration 2015 replicationRCT	psychology	97 replications of experiments
SCORE replicationmetasciencerandom	social & behavioural sciences	replications of 163 claims + 1.9k claims from papers

PubMed/Medline scraped data

Dataset	Domain	Data
Barnett and Wren 2019 PubMedrandom	biomedicine	416k studies from MEDLINE/PubMed
Chavalarias et al. 2016 PubMedrandom	biomedicine	1.9mln studies from MEDLINE/PubMed
Head et al 2015 PubMedrandom	biomedicine	219k studies from PubMed
Jager and Leek 2014 PubMedrandom	biomedicine	5.3k articles from 5 medical journals

Reference documents

Document	Contents
Documentation	Website documentation for shared derivation rules, currently covering p-values and confidence intervals.
Full dataset appendix	Stitched dataset notes and shared derivation notes for p-values and confidence intervals.
Dataset construction reference	Source-study selection, source-data extraction, and construction details that align with the paper-facing dataset appendix.